27435428752491 has 16 divisors (see below), whose sum is σ = 40880022297120. Its totient is φ = 18184561636320.

The previous prime is 27435428752463. The next prime is 27435428752573. The reversal of 27435428752491 is 19425782453472.

27435428752491 is a `hidden beast` number, since 2 + 7 + 4 + 3 + 54 + 28 + 75 + 2 + 491 = 666.

It is not a de Polignac number, because 27435428752491 - 2⁶ = 27435428752427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27435428752451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2936778540 + ... + 2936787881.

It is an arithmetic number, because the mean of its divisors is an integer number (2555001393570).

Almost surely, 2^{27435428752491} is an apocalyptic number.

27435428752491 is a deficient number, since it is larger than the sum of its proper divisors (13444593544629).

27435428752491 is a wasteful number, since it uses less digits than its factorization.

27435428752491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5873566603 (or 5873566597 counting only the distinct ones).

The product of its digits is 135475200, while the sum is 63.

The spelling of 27435428752491 in words is "twenty-seven trillion, four hundred thirty-five billion, four hundred twenty-eight million, seven hundred fifty-two thousand, four hundred ninety-one".